Fig. 181. 



Fig. 182. 



Fig. 183. 



Fig. 185. 



Fig. 186. 



Fraa. 181-186. — Exemplifying phases of the malignant parasite. 



Fra. 181. Two small ring-shaped amoebuIsB within the red corpuscles. Fig. 182. A 

 "crescent" or gamete showing the envelope of the red corpuscles ; also an amcebula. 

 j%s. 183-186 illustrate the changes in form undergone by the crescents outside the 

 'Body. In the interior of the spherical form in Fig. 185 evidence of the ilagella can be 

 •Been. Fig. 186. A male gametocyte which has undergone exflagellation, showing the 

 thread-like microgametes or spermatozoa attached at the periphery, x 1000. (The 

 figures in this plate are from preparations kindly lent by Sir Patrick Manson, ) 



